The sources discuss Delta Air Lines' controversial pricing strategy where solo travelers were charged significantly more than those traveling in groups of two or more on select routes. This policy, which also appeared to be used by American Airlines and United Airlines, sparked widespread public backlash, particularly on social media. Delta ultimately reversed the surcharge due to the negative reaction, highlighting the complexities of dynamic pricing in the airline industry and the importance of transparency and fairness to consumers. The episode underscores the power of consumer advocacy in influencing airline practices and potentially prompting regulatory scrutiny of pricing strategies.